Air purifier



FIG. 1 is a front elevation view of an air purifier.

FIG. 2 is a rear elevation view of FIG. 1.

FIG. 3 is a left side elevation view of FIG. 1.

FIG. 4 is a right side elevation view of FIG. 1.

FIG. 5 is a top plan view of FIG. 1.

FIG. 6 is a bottom plan view of FIG. 1.

FIG. 7 is a left side lower front perspective view of FIG. 1, the right side lower rear perspective view being a mirror image thereof.

FIG. 8 is a left side upper front perspective view of FIG. 1, the right side upper rear perspective view being a mirror image thereof.

FIG. 9 is a left side front upper perspective view FIG. 1, the right side rear upper perspective view being a mirror image thereof.

FIG. 10 is left side lower front perspective view FIG. 1, the right side lower rear perspective view being a mirror image thereof.

FIG. 11 is a right side lower front perspective view of FIG. 1, the left side lower rear perspective view being a mirror image thereof; and,

FIG. 12 is an illustrative cross-sectional view along section 12-12 in FIG. 4 denoting the profile of the air channels.

Portions and surfaces not illustrated herein form no part of the claimed design. The broken lines in the drawings illustrating small openings in the sides of the air channels, the top air exhaust portion and bottom support portions of the air purifier form no part of the claimed design. The surface shading lines are included to illustrate contour only. 

CLAIM The ornamental design for an air purifier, as shown and described. 